USB hub



FIG. 1 is a bottom perspective view of a USB hub showing my new design;

FIG. 2 is a top perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof, shown enlarged in scale; and,

FIG. 8 is a bottom plan view thereof, shown enlarged in scale.

The broken lines in FIG. 8 depict interior structure of the USB hub and form no part of the claimed design. 

CLAIM The ornamental design for a USB hub, as shown and described. 